The Topstitch and Metallica needle are exactly the same needle with different names. The best attributes are taken from all the other needles and are combined together to create these superb machine needles.
The needles have a sharp point for most general sewing applications from dress making to machine embroidery and machine quilting with the added bonus of a double length eye to allow Metallic Threads and thicker threads to pass through smoothly. This needle will easily take two or three threads at a time.
We cannot recommend these needles enough, it is the best needle by miles and the needle we always suggest you use if you are using metallic or thicker threads.